US2669832A - Wind and set mechanism for watches - Google Patents

Wind and set mechanism for watches Download PDF

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Publication number
US2669832A
US2669832A US101176A US10117649A US2669832A US 2669832 A US2669832 A US 2669832A US 101176 A US101176 A US 101176A US 10117649 A US10117649 A US 10117649A US 2669832 A US2669832 A US 2669832A
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US
United States
Prior art keywords
set lever
rocking bar
winding
spring
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US101176A
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English (en)
Inventor
Wilbur T Harris
William B Pegram
Henry S Brazee
Louis A Hummel
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United States Time Corp
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United States Time Corp
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Filing date
Publication date
Application filed by United States Time Corp filed Critical United States Time Corp
Priority to US101176A priority Critical patent/US2669832A/en
Priority to GB15483/50A priority patent/GB685721A/en
Priority to CH290043D priority patent/CH290043A/fr
Application granted granted Critical
Publication of US2669832A publication Critical patent/US2669832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/06—Mechanical devices for setting the time indicating means by making use of the winding means with rocking bar
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/1914—Alternate drivers and driven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19502—Pivotally supported

Definitions

  • This invention relates to improvements in devices commonly referred to as wind and set mechanisms in watches. More particularly, the invention relates to improvements in the rocking bar, set lever, pivotal means for supporting the same, and a spring mechanism for biasing said ⁇ ⁇ bar and lever.
  • Inexpensive watches however, must be formed from components which are produced by methods which will result in cheap production costs and, in general, many of the components of the wind and set mechanism of an inexpensive watch are produced by punch press, milling and screw machine operations, and bending operations, and only as few finishing operations as are absolutely necessary are performed on the components. Using such cheaply produced components has generally resulted in a so-called hard-acting wind and set mechanism in inexpensive watches.
  • the wind and set mechanism in inexpensive watches has therefore usually heretofore been composed of relativelyv large and somewhat bulky parts, and this has been particularly true of the rocking bar and set lever of the wind and set mechanism.
  • the rocking bar and set lever are formed solely by stamping or punch press operations from sheet stock and the surfaces of critical dimension are entirely formed during such stamping operations, as distinguished from bending operations, thus inexpensively affording control of tolerances within close limits.
  • the set lever is pivoted directly to the frame plates by utilizing integral trunnions on the set lever Ihaving knife edges engaging suitable fulcrum bearing apertures punched or stamped directly in the frame plates.
  • the rocking bar engaging portion and the trunnions are all in the same plane and are formed by a simple stamping operation by which the critical dimension therebetween is cheaply and effectively maintained within close tolerances.
  • a single spring formed preferably from Wire stock, is provided with a bearing loop intermediate its ends to position the spring on a suitable pivot xed to one of the frame plates, and the ends of the spring are relatively long and so shaped that one end is arranged to engage an end of the set lever so as to cam the set lever into engagement with the rocking bar when the rocking bar is moved to setting position, and also cam the set lever away from engagement with the rocking bar when the latter is moved toward winding position.
  • the other end of said spring engages the rocking bar and normally biases it toward winding position.
  • an abutment fixed to the back frame plate in order to limit said biasing of the rocking bar so that engagement of the wind or ratchet pinion on the rocking bar will not be too deep with the teeth of the winding gear.
  • Fig. 1 is a top edge view of a watch movement embodying the principles of the invention, certain parts being shown in cross section and other parts omitted for better illustration.
  • Fig. 2 is a plan view of the watch movement shown in Fig. l as viewed looking toward the back frame plate but with the back frame plate removed to expose details of the invention. In this view, the components are disposed in setting position.
  • Fig. 3 is a fragmentary View similar to Fig. 2 but showing the components disposed in winding position.
  • Fig. Il is a perspective View of the set lever per se of the invention.
  • Fig. 5 is an enlarged fragmentary plan view of one trunnion of the set lever mounted. within a segmental bearing opening of one frame plate, the trunnion being shown in full lines. in one position and in dotted lines in another position.
  • the movement l0 comprises a front frame plate l2 and a back frame plate I4 which are maintained in spaced relationship by suitable pillars i6, said frame plates and pillars comprising what is commonly known as a frame.
  • suitable pillars i6 said frame plates and pillars comprising what is commonly known as a frame.
  • the watch movement has a dial train which has a pinion that meshes with the diagrainmatically illustrated setting gear i8 shown in dotted lines in Figs. 2 and 3.
  • said setting gear is the minute Wheel of the dial train. It is also presupposed that there is a time train and a barrel containing a mainspring which energizes a barrel gear that drives said time train of the movement. 'Ihe mainspring is wound by winding gear 2S diagrammatically illustrated by dotted lines in Figs. 2 and 3, said winding gear being connected to the barrel arbor.
  • a winding stem 22, having an annular groove 24 and a winding -crown 26, is slidably and rotatably mounted as follows.
  • the stem 22 is provided with a squared section 28 which is slidably received within a complementary opening in crown gear 30, whereby said crown gear may be rotated when the winding stem is rotated in any selected longitudinal position thereof.
  • Crown gear 30 meshes with intermediate pinion 32 which is diagrammatically illustrated by a ⁇ dotted line and is rotatable about a pivot fixed relative to the frame and meshes with set pinion 34 and wind or ratchet pinion 36 shown in Fig. l in full lines and in dotted lines in Figs. 2 and 3.
  • Set pinion 34 and ratchet pinion 36 are rotatably mounted on suitable headed pins 38 which are both fixed to ,rocking bar 40.
  • Crown gear 30 is preferably flat and is rotatable between a pair of fixed parallel plates 42 and 44 which have extensions, not shown, tting into suitable apertures formed in frame plates l2 and I4 for purposes of securely positioning the plates 42 and 44 in spaced relationship.
  • Said plates have centrally thereof aligned cylindrical openings of suitable diameter to serve as bearings to slidably and rotatably receive the squared section 2S of winding stem.
  • Said openings also cooperate with a bearing opening 46 formed in a bridge member 43 which is secured to and between the frame plates in a manner similar to plates 42 and 44. Opening 45 is axially aligned with the central openings of plates 42 and 44 and rotatably and slidably receives the inner end of winding stem 22.
  • the winding stem 22 When the components of the winding and setting mechanism are in winding position as indicated in Fig. 3, the lower end of the squared section 28 of stem 22 abuts the upper surface of bridge member 48, as shown in Fig. 3, and prevents further inward movement of the winding stem and crown. Outward movement of the winding stem is limited by means to be described hereinafter. It will thus be seen that the winding stem is not only mounted for rotation but is also longitudinally movable between two extreme positions comprising the winding and setting positions of the ,stem and crown.
  • rocking bar 4% is pivotally mounted parallel to and adjacent the inner surface of front frame plate i2.
  • the rocking bar is provided with a bearing aperture 5@ which receives a short shaft or stud 52 fixed to front frame plate I2.
  • front frame plate I2 is provided with a plurality of arcuate slo-ts 54 which accommodate the pintlesl or headed pins 3B that are xed to the rocking bar and pivotally support the set and ratchet pinions and 3G.
  • Rocking bar 40 is formed from smooth surfaced, flat sheet-like stock by stamping or punching operations performed by a suitable press. All of the necessary apertures are preferably formed in the rocking bar by punching operations and one end or the rocking bar is also provided with a suitable locking notch 5S formed incident to said operations. Thus, the rocking bar may be entirely formed by a punching process with only a mini-mum of nishing operations being required.
  • YFrame plates i2 and ifi are also provided with transversely aligned, segmental ulorurn bearing apertures 58, one corner or notch t-i of each comprising that portion of the aperture which is rockably or pivotally engaged by the knife edge of a trunnion to be described. It will be observed that the corner or notch is disposed quite closely to the edge of the frame plate for advantages to be described, and said bearing apertures are foi-ined solely by punching operations whereby the ,Shape and position thereof rel.-
  • Elongated set lever 62 is likewise formed from smooth surfaced, flat sheet-like stock material. Said set lever is illustrated to advantage perspectively in Fig. ll. ⁇ In plan view, the set lever is somewhat cross-shaped with the cross bar 64 being disposed closer to one end than the other of the set lever. The opposite ends of the cross bar comprise trunnions 66 and 68 which are aligned transversely relative to the maior axis of the elongated set lever. End portion 'I0 of the set lever, in plan view, hasa stepped effect, one step thereof comprising a locking surface 12 and the outermost step is provided with a notch or recess 14 to slidably engage aA biasing spring to be described. n
  • the locking surface i2 and the surfaces "I6 and 18 of the trunnions, as well as the other edge surfaces of the trunnions are formed by the same stamping operation by which the set lever is produced from flat stock.
  • the surfaces 'I6 and 'I8 of the trunnions 66 and 68 meet the upper flat surface of the cross bar 64 which forms the trunnions to provide knife edges 89 and 82 which engage thev corners or notches 60 of the fulcrum bearing apertures 58 and rock therein between the full line positions and the dotted line positions of the trunnions illustrated in Fig. 5.
  • locking surface l2 is approximately perpendicular to the plane of set lever 62, and there is substantially no undercutprovided since none is required for reasons to be hereinafter set forth.
  • the distance is critical between locking surface 12 and the surfaces 'I and I8 of the trunnions which provide one wall of the knife edges 86 and 82, but since said surfaces are formed by stamping, such critical distance may be inexpensively maintained within very close tolerances.
  • segment-like bearing apertures 58 as well as placing them near the edge of the frame plates with their corners or notches E0 as close as possible to the outer edges of the frame plates positions the effective pivot point of the set lever trunnions much nearer the edge of s' the frame plate than would bepossible if cylindrical apertures or supporting staffs or screws were used to pivotally support the set lever.
  • the important result of using the apertures 58 and knife edged trunnions is that the set lever and 1'.”
  • Set lever 62 is also provided with an integral extension 84 having the same thickness as the other portions of the lever and the conguration of said extension is such as to provide a lug. 86 which is normally engageable with the annular groove 24 of the winding stem whereby longitudinal movement ofV the latter in opposite directions moves the set lever either toward its winding position shown in Fig. 3 or its set position shown in Fig. 2, said set lever being pivoted on its knife edges within the bearing apertures 58. When the set lever is in its setting position, engagement of the lug 86 with the groove 24 of the winding stem will limit outward movement ofthe stem. As is readily seen in Figs.
  • extension 54 is disposed at an angle of substantially 30 to the plane of the main flat portion of the set lever; but it will be observed that the angular bend is positioned past the end surfaces 'i6 and i8 of the trunnions, whereby such bending as is required to position the extension 84 will not interfere with the critical distance between the locking surface l2 and the end surfaces 16: and l of the trunnions. This is one of the important features of the present invention.
  • Bending the extension 84 relative to the main portion of the set lever also permits equalizing the angle the set lever lug 86 traverses in moving between the winding and setting positions thereof. Placing the effective pivot center of the trunnions of the set lever as near the edge of the frame plates as possible permits the use of a smaller angle between the extension and the main portion of the set lever and more closely approximates a straight lever with the consequent higher mechanical eiiiciency and advantages of such straight lever when serving as a fulcrum lever.
  • Equalizing the angle which the set lever traverses in moving between the winding and setting positions thereof permits the use of a narrower groove 24 in the winding stem than if the angle were not equalized and results in minimixing the play between the walls of said groove and the top and bottom surfaces of lug 86 when the winding stem moves the set lever to either its winding or setting positions.
  • the set lever 62 is disposed between the frame plates I2 and I4 and the ends of the trunnions, as shown in Fig. l, are substantially ush with the outer surfaces of the frame plates. If desired, said ends of the trunnions may extend slightly beyond the outer surfaces of the frame plates in order to facilitate ready and inexpensive maintenance of manufacturing tolerances.
  • the lug 86 is disposed within the annular groove 24 of the winding stem, there is a space provided between extension 84 and frame plate I4, whereby set lever62 may be moved transversely in a direction longitudinal to its trunnions, toward frame plate. I4 tothe dotted line position thereof shown in Fig.
  • the depth with which the lug 8e engages thegroove 24 is less than the length of trunnion 6,6 disposedin its bearing aperture S, whereby when the set lever is moved laterally to effect disengagement of the lug E6 with the groove 24; thetrunnions will both preferably still be disposedin their bea-ring apertures to provide firm support for the set lever during such sliding motion thereof.
  • a fiatv leaf spring 88 Secured to the exterior of frame plate ifi is a fiatv leaf spring 88 which may be attached by any suitablemeans such as a screw 9D, the free end ofsaid spring engaging the outer end of trunnion.68 ⁇ of the set lever, whereby the spring normallybiases the set lever and lug 56 in ardirection to disposed the lug within the groove 2li.
  • the above-described lateral movement of the set lever 62 for effecting removal of the winding stem andjcrown is in opposition to the force of spring 88, but inasmuch as said spring need not be very strong, such movement ofthe set lever may be effected simply by the use of tweezers or any othersuitable tool by'which the set lever may be engaged to cause the desired movement.
  • any other suitable means may be used to disengageably maintain the lug Bt within the groove 24 such as, for example, a readily removableA blocking ory wedging member which may-be disposed partially around trunnion t3, between extension 86 and frame plate Iii.
  • the mounting-of the setl lever and rocking bar between the frame plates is such that lever andi bar are disposed with their principal planes substantially'at a right angle to each other.
  • This arrangement is advantageous in that the smooth finished stock surface of the material from which the set leverr is formed slidably engages the cut or raw'stamped surface of the notched end of the set lever during substantially the entire co-en gagedv movement of the set lever and rocking bar between the setting and winding positions theren of..
  • Only when the cut or stampedlocking sursi ai) facev T2 of the set lever engages the similarly formed surface of notch 56 does a raw, cut surface engage another raw, cut surface on said components. It will thus be seen that a minimum of friction occursy between the set lever and rocking bar during the major portion of their i movement relative to each other due principally tothe utilization of the smooth finished stock surface of the set lever as one of the cin-engaged surfaces.
  • An elongated spring preferably formed from Wire-v or other similar stock is bent intermediate its ends to provide a bearing portion 92 which surrounds a headed pintle Se fixed to the inner surface of frame plate i2.
  • the elongated ends 916v and 98 of the spring provide spaced sections respectively engaging one end of set lever 'and one-of ⁇ the pintles or pins 3S fixed to rocking bar 40; whereby in effect the latter end or section of the: spring engages the rocking bar.
  • the bearing portion 92 ofthe spring permits rotation of the endsvof the spring as a unit relative to pintle it andthe frame of the movment.
  • the end 96- of thespring is provided with a bend
  • Camming surface 85 when in engagement with the notch Hl of the set lever, biases the set lever in a direction to permit the rocking bar'to move clockwise toward its winding positiony shown in Fig. 3; whereas when camming surf-ace iM is in engagement with notch it, said surface will bias the set lever in a direction tomove the rocking bar toward its setting positionV shown in Fig. 2.
  • camining surface itil After locking surface 12 of the set ⁇ lever engages locking notch 5t of the rocking bar, camining surface itil will press against the end of the set lever to maintain said locking surfaces.l in coengagement and no yundercutting of either surface will be required to securely maintain the set pinion Si in engagement with setting gear I8 during setting operations.
  • the spring is rotated clockwise about pintle 94 when the rocking bar is moved by the'set lever from its winding to Isetting positions.
  • Such movement of the spring is caused by the rocking bar moving end S8 of the yspring clockwise and simultaneously placing end 96 under greater tension against the end of set lever E2 at a time when such eXtra tension is most needed to assist moving the set lever in a direction to cause locking surface 'I2 thereof to move into engagement with the locking notch 56 of the rocking bar.
  • a spring may be selected that is only strong enough to either maintain the set lever and rocking bar in locked engagement or bias the rocking bar from lsetting to winding positions since the force produced by the end 98 of the spring is supplemented by the camming force produced by surface
  • FIG. 5 an enlarged fragmentary portion of U0 the frame plate l2 is shown to more clearly illustrate the functioning of the trunnions and bearing apertures.
  • the broad, fiat undersurface of each trunnion is disposed flatly against the long at lower surface
  • the co-engaging surs faces of the trunnions and the bearing apertures 5B are substantial and firm when the set lever is locked with the rocking bar in setting position and wear between the co-engaging surfaces of the trunnions and bearing apertures will thus be reduced to a minimum.
  • the set lever 52 is disposed in winding position as shown in Fig. 3
  • the trunnions will be disposed in the dotted line position shown in 5 and the upper broad surface or the trunnions will be disposed flatly against the upper surface H2 of the bearing aperture to provide substantial engagement therebetween when the rocking bar and cam surface 56 of the spring are maintaining the set lever in winding position.
  • a watch movement the combination of a frame, a rocking bar pivotally supported thereby for movement between setting and winding positions, a set lever pivotally supported by said frame for movement in opposite directions, and a spring having spaced sections movable relative to said frame, one of said sections being engageable with said set lever and having camming portions respectively engageable with said set lever to bias it in a direction to engage and move said rocking bar into its setting position and bias the set lever in the opposite direction away from engagement with said rocking bar, the other section of said spring engaging said rocking bar to bias it toward its setting position, said sections of said spring co-acting to supplement each other.
  • a watch movement the combination of a frame, a rocking bar pivotally supported thereby for movement between setting and winding positions, a set lever pivotally supported by said frame for movement in opposite directions, said set lever when moved in one direction being engageable with said rocking bar to move it toward its setting position, a pintle fixed relative to said frame, an elongated spring bent to provide a bearing portion intermediate its ends engaging said pintle, one end of said spring engaging said set lever to bias it in said one direction to engage said rocking bar and the other ⁇ end of said spring engaging said rocking bar to normally bias it toward its winding position, whereby said springiis-pivotally movable asfa'unit around Asaid Vpintle and one end of said spring serves as means toitension the otherend andvice versa.
  • a set lever comprising a substantially flat lmember having oppositely directed trunnions xed to and projecting from the sides of Vsaid. member, one endportion of said lrnmnber'having a locking surface ⁇ and said locking surface and one surfaceof each vof said trunnions being substantially vertical to the plane of 'said member, and an opposite end portion disposed in a plane ⁇ at an angle to said iiat member and integral therewith, said opposite end portion having a lug 'projecting therefrom in the plane of said opposite end portion.
  • a set lever comprising a substantially dat member having oppositely directed trunnions -Xed to and projecting from the sides of said member, one end portion of said member having a locking surface and arecess arranged to receive a biasing means, said locking surface and one surface of each of said trunnions being substantially vertical to the planeof said member,
  • yAsetlever comprising a substantially dat memberhaving oppositely directed trunnions integral therewith and projecting from the sides of said member, one end portion of said member having a stepped conguration of which one surface comprises a locking surface and said locking lsurface and one surface of each of said trunnions being substantially vertical to the plane of said member, another surfaeeo said stepped configuration having a recess arranged to receive a biasing means, and an extension integral with said dat member and disposed past said trunnions in a plane at an angle to said 'flat member, said'extensionhaving a lug projecting therefrom in the'plane o said extension.
  • a watch movement the combination of a pair of spaced frame plates having therein fulcrumbearing apertures aligned in a direction transverse to the plane of said plates and each having angularly disposed intersecting wall portions icrming a notch, a set lever having trunniens provided with ⁇ knife edges engaging the notches in said Vfulorum bearing apertures for rocking movement in opposite directions, a winding stem engaging said set lever and movable lengthwise to pivotally move said set lever, and a. spring engaging said set lever in a manner to bias said knife edges of said trunnions into engagement with said notches whereby said knife edges of said trunnions are always disposed within said notches for rocking movement therein.

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  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
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US101176A 1949-06-24 1949-06-24 Wind and set mechanism for watches Expired - Lifetime US2669832A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US101176A US2669832A (en) 1949-06-24 1949-06-24 Wind and set mechanism for watches
GB15483/50A GB685721A (en) 1949-06-24 1950-06-21 Improvements in or relating to watch movements
CH290043D CH290043A (fr) 1949-06-24 1950-06-24 Mouvement d'horlogerie.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US685721XA 1949-06-24 1949-06-24
US290043XA 1949-06-24 1949-06-24
US101176A US2669832A (en) 1949-06-24 1949-06-24 Wind and set mechanism for watches

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US2669832A true US2669832A (en) 1954-02-23

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US101176A Expired - Lifetime US2669832A (en) 1949-06-24 1949-06-24 Wind and set mechanism for watches

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CH (1) CH290043A (fr)
GB (1) GB685721A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044764A (en) * 1975-10-30 1977-08-30 Szabo Anthony W Fluid infusion apparatus
US4192197A (en) * 1977-05-30 1980-03-11 Autovox, S.P.A. Disengageable transmission device
JP2018091842A (ja) * 2016-12-06 2018-06-14 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 複数のディスプレーの双方向性変更のための計時器用機構

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US204606A (en) * 1878-04-29 1878-06-04 Improvement in escapements for toy watches
US445182A (en) * 1891-01-27 Stem winding and setting watch
US448877A (en) * 1891-03-24 Albert oiiopard
US672728A (en) * 1900-12-04 1901-04-23 Waterbury Clock Company Winding and setting watch.
US708985A (en) * 1902-05-12 1902-09-16 Morris Bassoff Stem-winding watch.
US968436A (en) * 1910-02-17 1910-08-23 Waterbury Clock Co Stem-winding and stem-setting watch.
US1537390A (en) * 1923-01-23 1925-05-12 Sidney C Vincent Toy alarm clock
FR757267A (fr) * 1933-06-20 1933-12-22 Nouveau système de remontoir
US2362245A (en) * 1942-05-20 1944-11-07 Longines Wittnauer Watch Co In Winding and setting mechanism for watches

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US445182A (en) * 1891-01-27 Stem winding and setting watch
US448877A (en) * 1891-03-24 Albert oiiopard
US204606A (en) * 1878-04-29 1878-06-04 Improvement in escapements for toy watches
US672728A (en) * 1900-12-04 1901-04-23 Waterbury Clock Company Winding and setting watch.
US708985A (en) * 1902-05-12 1902-09-16 Morris Bassoff Stem-winding watch.
US968436A (en) * 1910-02-17 1910-08-23 Waterbury Clock Co Stem-winding and stem-setting watch.
US1537390A (en) * 1923-01-23 1925-05-12 Sidney C Vincent Toy alarm clock
FR757267A (fr) * 1933-06-20 1933-12-22 Nouveau système de remontoir
US2362245A (en) * 1942-05-20 1944-11-07 Longines Wittnauer Watch Co In Winding and setting mechanism for watches

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044764A (en) * 1975-10-30 1977-08-30 Szabo Anthony W Fluid infusion apparatus
US4192197A (en) * 1977-05-30 1980-03-11 Autovox, S.P.A. Disengageable transmission device
JP2018091842A (ja) * 2016-12-06 2018-06-14 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 複数のディスプレーの双方向性変更のための計時器用機構

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GB685721A (en) 1953-01-07
CH290043A (fr) 1953-04-15

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